Slideboard

ABSTRACT

A slideboard for sliding on snow has a core ( 4 ), a sidewall ( 2 ) on the lateral surfaces ( 10 ) of the core ( 4 ), a base ( 5 ) as well as upper reinforcement plies ( 6 ) on the upper side of the core ( 4 ). The sidewall ( 2 ) laterally covers the upper reinforcement plies ( 6 ) with its one side ( 13 ).

RELATED APPLICATION DATA

This application claims priority to DE 10 2012 110 345.3, filed Oct. 29,2012, the disclosure of which is incorporated by reference herein.

BACKGROUND AND SUMMARY

The invention relates to a slideboard for sliding on snow, in particulara snowboard or a ski, according to the preamble of claim 1.

Slideboards of that kind are well-known (cf. e.g. DE 198 53 265 C1), inwhich both the upper reinforcement plies and the lower reinforcementplies cover the sidewall on its upper side and/or its bottom side, towhich they are glued.

Impact, in particular against the edges of the slideboard, whichunavoidably occurs when slideboarding, may gradually lead todelamination or spalling of the upper reinforcement plies.

It is the object of the present invention to prevent delamination of theupper reinforcement plies. According to the invention, this is achievedby the slideboard characterized in claim 1. Advantageous embodiments ofthe invention are described in the sub-claims.

Thus, according to the invention, the slideboard is designed in such away that the sidewall laterally covers the upper reinforcement plies.This means that the inner side of the sidewall is flush with the upperreinforcement plies.

The sidewall and the core may be formed as a single piece. In case of atwo-piece design, the sidewall likewise covers the core with its innerside.

As a result, both the core and the upper reinforcement plies areprotected by the sidewall in case of impact. The upper reinforcementplies are thus prevented from delaminating or spalling from the core.

In order to laterally cover the upper reinforcement plies together withthe core, the lateral surface of the core and the lateral surface of theupper reinforcement plies may align with each other.

Instead, the lateral surface of the core may be inwardly offset towardsthe lateral surface of the upper reinforcement plies, and the inner sideof the sidewall may have a preferably stepped recess on its upper edge,with the upper reinforcement plies extending with their lateral surfaceinto said recess.

The lateral surface of the core and the lateral surface of the upperreinforcement plies are preferably flush with the inner side of thesidewall.

The sidewall may, for example, be attached to the core and the upperreinforcement plies by using an adhesive. Due to the preferably steppedrecess, the adhesive joint between the upper reinforcement plies and thesidewall is extended and the strength of the joint between the sidewalland the upper reinforcement plies thereby increased accordingly.

If—as is customary—a top sheet, for example a covering film, servinge.g. decorative purposes, is also provided on top of the reinforcementplies, the sidewall is preferably configured in such a way that itlaterally covers the top sheet as well.

The sidewall may extend around the entire circumference of the core ofthe slideboard. It may also laterally cover the core and the upperreinforcement plies as well as, where applicable, the top sheet only inspecific sections, for example in the tip and/or end section and/ormiddle section of the board. In addition, the sidewall may only beprovided on the two lateral surfaces of the core.

Skis, in particular freestyle skis, may thus be provided with a sidewallin sections, in particular in front of and behind the binding, with thesidewall covering with its inner side the core and the upperreinforcement plies, because, in case of jumps in which a freestyleskier crosses both skis in midair, the skis are subjected toparticularly heavy wear and tear at these points.

The sidewall may be made of preferably impact-resistant plastics, forexample acrylonitrile butadiene styrene or polyurethane, but also ofpreferably laminated wood, in particular hardwood, or of metal, forexample an aluminum material.

In addition to the upper reinforcement plies, the slideboard preferablyhas lower reinforcement plies between the core and the base, which mayalso extend between the bottom side of the sidewall and the base of theslideboard to the outer side thereof, where applicable.

The upper and lower reinforcement plies may, for example, be made offiber-reinforced and/or impact-resistant plastics, such as acrylonitrilebutadiene styrene, polyurethane, metal and/or wood.

In relation to the upper reinforcement plies and, where applicable, thetop sheet, the sidewall may slightly protrude upwardly on its innerside, for example not more than three or four millimeters. Thisprotrusion may also be due to production-related reasons, for example ifthe slideboard is produced using a wet lay-up process, in which theupper reinforcement plies and, where applicable, the covering film,which cannot be cut accurately to size with this process, are laminatedonto the upper side of the sidewall. The upper reinforcement plies arethen removed from the sidewall, where applicable together with thecovering film, for example by shaping, wherein, during the shapingprocess, the covering film with the upper reinforcement plies is usuallyremoved to a greater extent in the edge region towards the sidewall thanthe sidewall so that said protrusion is formed.

In particular when prepregs, which can be cut accurately to size, areused for the upper reinforcement plies, the upper reinforcement pliesand, where applicable, the top sheet may be flush with the upper side ofthe sidewall.

DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail below by way of examplewith reference to the enclosed drawings, in which:

FIG. 1 shows a top view of the slideboard (snowboard); and

FIGS. 2 to 4 a cross section through a longitudinal half of theslideboard along the line A-A of FIG. 1 according to another firstembodiment of the invention respectively; and

FIG. 5 a top view of a pair of skis.

DETAILED DESCRIPTION

According to FIG. 1, the slideboard 1 has a sidewall 2 extending aroundthe entire circumference of the slideboard (snowboard), with thesidewall 2 surrounding the top sheet 3 in the top view according to FIG.1.

According to FIG. 2, the snowboard has, in addition to the sidewall 2and the top sheet 3, a core 4 which is made, for example, of laminatedwood, a base 5 as well as upper reinforcement plies 6 on the upper sideof the core 4 and lower reinforcement plies 7 between the core 4 and thesidewall 2 as well as the base 5, with the base 5 being surrounded by asteel edge 8.

Whereas, according to FIGS. 2 and 3, the lower reinforcement plies 7extend below the sidewall 2 to the outer side of the slideboard 1, thesidewall 2 laterally covers with its inner side 13 both the core 4 andthe upper reinforcement plies 6, including the top sheet 3.

According to FIG. 2, the lateral surface 10 of the core 4, the lateralsurface 11 of the upper reinforcement plies 6 and the lateral surface 12of the top sheet 3 align with each other for this purpose, with theinner side 13 of the side wall 2 being flush with the lateral surfaces10 to 12.

According to FIG. 3, the lateral surface 10 of the core 4 is inwardlyoffset towards the lateral surface 11 of the upper reinforcement plies 6and the lateral surface 12 of the top sheet 3. For this purpose, theinner side 13 of the sidewall 2 has a recess 14 on the upper edge, withthe upper reinforcement plies 6, including the top sheet 3, extendingwith their lateral surfaces 11, 12 into said recess 14 in such a mannerthat they are flush.

The sidewall 2 is attached to the core 4, the upper reinforcement plies6, the top sheet 3 and the lower reinforcement plies 7, for example byusing an adhesive.

According to FIG. 4, the recess 14 is formed as a step on the inner side13 of the sidewall 2 above the core 4, with the upper reinforcementplies 6 extending to the step and the top sheet 3 extending on top ofthe step to the inner side 13 of the sidewall 2.

Whereas, according to FIG. 1, the sidewall 2 extends around the entirecircumference of the slideboard and the snowboard 1 respectively, thesidewall 2 may only be provided at specific points of the slideboardwhich are subjected to particularly heavy wear and tear. As shown by thedashed lines in FIG. 1, only the tip section S, the end section E aswell as the sections B1 and B2 in the region of the bindings on bothsides of the snowboard 1 may, for example, be provided with a sidewall2.

In contrast, for example in case of a pair of freestyle skis F1 and F2as shown in FIG. 5, the sidewall 2 may be provided with a sidewallsection 2 only in the region of the tips S and E as well as in theregion X1 and X2 in front of and behind the ski binding X on both sidesof each ski F1 and F2 or at least on the opposite inner sides, becausethe skis, as illustrated by the ski F2 (dashed line), may collide inthese regions, for example when jumping in the air and crossing theskis.

What is claimed is:
 1. A slideboard for sliding on snow having a core(4), a sidewall (2) on lateral surfaces (10) of the core (4), a base (5)and upper reinforcement plies (6) on an upper side of the core (4),characterized in that the sidewall (2) laterally covers the upperreinforcement plies (6) with its inner side (13).
 2. A slideboardaccording to claim 1, characterized in that the sidewall (2) laterallycovers with its inner side (13) both the core (4) and the upperreinforcement plies (6).
 3. A slideboard according to claim 1,characterized in that the core (4) and the sidewall (2) are formed as asingle piece.
 4. A slideboard according to claim 1, characterized inthat the upper reinforcement plies (6) are provided with a top sheet (3)which, together with the upper reinforcement plies (6), is laterallycovered by the inner side (13) of the sidewall (2).
 5. A slideboardaccording to claim 1, characterized in that the sidewall (2) has arecess (14) on its inner side (13) above the core (4), with the upperreinforcement plies (6) extending with their lateral surface (11) intosaid recess (14).
 6. A slideboard according to claim 4, characterized inthat the sidewall (2) has a recess (14) on its inner side (13) above thecore (4), with the upper reinforcement plies (6) with their lateralsurface (11) and the top sheet (3) with its lateral surface (12)extending into said recess (14).
 7. A slideboard according to claim 5,characterized in that the recess (14) formed as a step (15) in thesidewall (2) above the core (4) is, with the upper reinforcement plies(6) extending to the step (15) and the top sheet (3) extending on top ofthe step (15) to the inner side (13) of the sidewall (2).
 8. Aslideboard according to claim 1, characterized in that the sidewall (2)protrudes upwardly in relation to the reinforcement plies (6).
 9. Aslideboard according to claim 4, characterized in that the sidewall (2)protrudes upwardly in relation to the reinforcement plies (6) and thetop sheet (3).
 10. A slideboard according to claim 1, characterized inthat the sidewall (2) extends around the entire circumference of theslideboard (1).
 11. A slideboard according to claim 1, characterized inthat the sidewall (2) extends around ends and portions of thelongitudinal sides (S, E, B1, B2, X1, X2) around the circumference ofthe slideboard (1, F1, F2).
 12. A slideboard according to claim 1,characterized in that the core (4) is at least partly made of wood. 13.A slideboard according to claim 1, characterized in that the sidewall(2) is made of at least one of plastic, hardwood, and metal.